Montreal-based MAADI Group recently designed a 151-foot-long, 6½-foot-wide pedestrian work bridge to connect platforms in the West Philippine Sea. Using high-strength aluminum for the bridge’s material, MAADI designed the bridge with lateral movement capability that could withstand deep-ocean movement and wind gusts up to 200 km/hr (124 mph).
MAADI’s President/CEO, Alexandre de la Chevrotière, says that water and wind movements can cause the platforms to shift by as much as one inch, so the bridge was engineered to account for movement up to one meter. A trolley system at one end of the bridge allows slight back-and-forth movements of the bridge between the platforms.
The span was built in four sections. Its abutments are unique, according to de la Chevrotière, in that their pin connections rotate on two axes. There’s also a pin connection at the top of the trolley, which allows the bridge to move in several different directions by as much as three degrees to account for ocean movements, he says.
The 13-ton bridge was built to accommodate up to 80 workers on deck. (The accompanying image shows 8.4 tons of water being used to test the span’s load capacity.) The bridge’s camber was designed to reduce the deflection caused by dead and live loads.
“Aluminum is the material of the future,” says de la Chevrotière. “It doesn’t rust and it’s maintenance free.”
Read about more innovations from BD+C's 2014 Great Solutions Report.
Related Stories
Sponsored | Architects | Jul 19, 2017
Introducing StrXur by Bluebeam
Our goal is to present unique perspectives you may not be able to find anywhere else.
Sponsored | Accelerate Live! | Jul 13, 2017
Defining the future by mastering the art of change
From my perspective, what separates organizations thriving in the digital revolution from those who are not boils down to one thing: leadership.
Multifamily Housing | Jul 12, 2017
Midyear Rent Report: 26 states saw rental price increases in first half of 2017
The most notable rental increases are in growing markets in the South and Southwest: New Orleans, Glendale, Ariz., Houston, Reno, N.V., and Atlanta.
Giants 400 | Jul 12, 2017
Innovation abounds, but will it lead to growth for AEC Giants?
Engineering firms such as Arup, Glumac, and Thornton Tomasetti are leveraging their in-house expertise to develop products and tools for their design teams, clients, and even the competition.
Multifamily Housing | Jul 12, 2017
7 noteworthy multifamily projects: posh amenities, healthy living, plugged-in lifestyle
Zen meditation gardens, bocce courts, saltwater pools, and free drinks highlight the niceties at these new multifamily developments.
Accelerate Live! | Jul 6, 2017
Watch all 20 Accelerate Live! talks on demand
BD+C’s inaugural AEC innovation conference, Accelerate Live! (May 11, Chicago), featured talks on machine learning, AI, gaming in construction, maker culture, and health-generating buildings.
Healthcare Facilities | Jun 29, 2017
Uniting healthcare and community
Out of the many insights that night, everyone agreed that the healthcare industry is ripe for disruption and that communities contribute immensely to our health and wellness.
Architects | Jun 25, 2017
Stantec adds RNL Design to its stable, fortifying several of its business units
The engineering giant also names successor to CEO who will retire at the end of this year.
Building Team | Jun 22, 2017
Seven lessons learned on commissioning projects
Commissioning is where the rubber meets the road in terms of building design.
Sponsored | Building Team | Jun 20, 2017
Plan ahead when building in the west
Getting a project through plan review can be an unusually long process, anywhere from six months to two years.